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W.'M.UR'PHY Cooking -St0ve.

No. 224,464, Patented Feb. 10; 1880.

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W. MURPHY. Cooking-Stove.-

Patented Feb. 10,1880;

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UNITED STATES PATENT OFFICE.

WILLIAM MURPHY, OF MONTREAL, QUEBEC, CANADA.

COOKING-STOVE.

SPECIFICATION forming part of Letters Patent No. 224,464, dated February 10, 1880.

Application filed June 2, 1879.

To all whom it may concern Be it known that I, WILLIAM MURPHY, of the city of Montreal, in the District of Montreal, in, the Province of Quebec, Canada, have invented a new and useful Improvement in (looking-Stoves and Water-Furnaces, of which the following is a specification.

This invention relates to the combination of a water-furnace and cooking-stove in such a manner that the devices may be used for either purpose independently or both simultaneously; and it furthermore consists in a peculiar construction and arrangement of the firechamber .and other parts of the apparatus, whereby the fire may be diminished and the whole made convenient and economical.

Heretofore the combined cooking and water furnace has been so constructed that one operation could not be cut off cfliciently from the other, which is objectionable for this reason, thatit'rendered it non-operative in hot weather.

The object of my invention is to provide such a system of cooking-stoves that the fuel used for cooking shall be capable of heating the house or place by hotwater, and the stove adapted to be changed at will from a combined cooking and Water furnace to a cooking-stove only. Tlns consists in the arrangement of the fireplace and oven, in combination with suitable hollow castings, that it shall be capable of be ing used conjointly or separately; and it finally.

consists in the particular construction and arrangement of the several parts.

5 In the accompanying drawings, in which similar letters of reference indicate like parts,

Figure 1 is a vertical longitudinal section of a device embodying my invention. Fig. 2 is a birds-eye View of the top, showing the four pot-holes in circular end (marked K) for sauce pans, also smoke-pipe hole (marked L) and outlet-pipe for water, and frame-castings and circular back. Fig. 3 is a back' elevation of the same. Fig. 4. is a section'of the hollow Fig. 5 is the detached fire-pot X, a device forming part of my invention. Fig. 6 is a sectional view of stove, taken per line w w; and Fig. 7 is 'a sectional View of the cushion for protecting the under side of .the even through line 51 y.

casting for protecting the under side of oven.

A is the base. B are the inlet-pipes. U is the fire-box casting. D is the water-space in same. E are the return water holes leading between base and fire box. F are water-inlet 55 holes of bridge in the back of fire-place. F is abridge. G are outlet-holes of bridge. H are the holes through which the water passes from fire-boxcasting to hollow frames at back. I I are the outlet-holes of hollow frame-casting to crown over the oven. J J are the outletholes to convey the water for heatin g purposes.

L is the smoke-pipe hole, Fig. 3. M M are the long bolts and nuts for holding together the hollow frame-castin gs and crown over the oven. KK, Fig. 2, are the four sauce-pan holes. P is the hollow casting for protecting under side of oven, having passages S S and B, Fig. 4.

is the removable fire-pot, provided with supports 00, as seen in Fig. 5. The object of this fire-pot is for the purpose of the more conveniently overcoming the difficulties of keeping up a small fire during the heated months of summer, as well as causing an economy in fuel, at the same time providing a sufficient amount of hot water, as well as affording the necessary heat for domestic uses. This firepot X is inserted in andremoved from firebox 0 at the option of the user, and rests upon supports as when in position for use.

The base A is secured to fire-box O by bolts and nuts; and on top of fire-box C the pot-frame K is mounted; and on this frame is fitted the oven; and on the oven the crowncasting is mounted and secured to the frame- 8 5 casting, as shown in Figs. 1 and 3; and at the back of G, secured by bolts, are the hollow frame-castings shown in Fig. l and in Fig.

3. The hollow casting P is joined to the hollow frame-castings by pipes T and Q under 90 the oven. The pipe Q communicates with the frame-casting adjoining pot-castings at the back, supplying the cushion with water. Pipes T T are the outlet-pipes, returning the water into the side pipes of the frame-castings. 5

The operation of the device is as follows: The water is run in at the pipes B in the base A. It will pass up to the firebox casting 0 through the holes E into the space 1), and thence through the hole F into the bridge at too the back of the fire-place, and will pass out at G to join the main water-passage out of the fire-box G to the framecasting .H, Fig. 3, and will circulate in the frame-castin g and out at the top holes in the same (marked 1) to the crown-casting over the oven, and out of pipes J to the heating-coils in the house or places to be heated by the circulation of the water; and, with regard to the fuel, the fire being made in the circular end of the fire-box casting 0, the product of the fire will pass under the casting P, Fig. l, and up the open spaces between each frame-casting and the back, and over the top of the oven and out of the chimney.

The oven is heated by opening the dampers at back and front. The saucepan holes, bein g directly over the fire, will always be ready for cooking purposes.

The oven is worked by dry heat only. The water is used in circulating-pipes for heating only the house or places, and when the stove is to be used for cooking only the detached fire-pot of my device is dropped into the fireplace of the fire-box casting 0. (Shown in Fig. 1.) By this adjustment both modes of working are secured, and by removing the detached fire-pot the stove becomes a hot-water furnace and cooking stove.

I am aware that tire-boxes the walls of which were made hollow to allow water-circulation are not, broadly, new; but it will be seen that my casting G is in one piece and extends rearwardly, and is so formed as to produce a horizontal draft-flue entirely surrounded with water, and that this extension has in its under portion openings for particular connections, to allow circulation of water through the whole length of the stove, in the manner elsewhere described.

I am also aware that detachable firepots have been used in other apparatus.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of tire-box casting O, frame-castings H, bridge F, and hollow side walls, W, substantially in the manner as and for the purposes described.

2. The combination of fire-box castings G, hollow base-castings A, bridge F, hollow side walls W, and frame-castin gs H, substantially in the manner as and for the purposes described.

3. The combination of fire-box castings (1 with removable fire-pot- X, provided with supports 00, substantially in the manner as and for the purposes described.

WILLIAM MURPHY.

Witnesses:

F. LAWTON, W. M. PARSONS. 

